General Information:
Chemical Formula:
Ag2Pb10(Sb,As)12S29
Composition:
(Molecular Weight = 4,538.17 gm)
Silver 4.75 % Ag
Antimony 24.15 % Sb
Arsenic 4.95 % As
Lead 45.66 % Pb
Sulfur 20.49 % S
Empirical Formula:
Ag2Pb10Sb9As3S29
IMA Status:
Approved IMA 1967
Physical Properties:
Cleavage:
[???] Perfect
Color:
black.
Density:
6
Diaphaniety:
Opaque
Hardness:
3.5 - Copper Penny
Luster:
Metallic
Streak:
metallic
More details...